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M48T212A

ST Microelectronics
Part Number M48T212A
Manufacturer ST Microelectronics
Description 3.3V TIMEKEEPER CONTROLLER
Published Apr 29, 2005
Detailed Description M48T212A 3.3V TIMEKEEPER® CONTROLLER PRELIMINARY DATA s CONVERTS LOW POWER SRAM into NVRAMs YEAR 2000 COMPLIANT (4-Digi...
Datasheet PDF File M48T212A PDF File

M48T212A
M48T212A


Overview
M48T212A 3.
3V TIMEKEEPER® CONTROLLER PRELIMINARY DATA s CONVERTS LOW POWER SRAM into NVRAMs YEAR 2000 COMPLIANT (4-Digit Year) USES SUPER CAPACITOR or LITHIUM BATTERY (User Supplied) BATTERY LOW FLAG INTEGRATED REAL TIME CLOCK, POWER-FAIL CONTROL CIRCUIT AUTOMATIC POWER-FAIL CHIP DESELECT and WRITE PROTECTION WATCHDOG TIMER WRITE PROTECT VOLTAGES (VPFD = Power-fail Deselect Voltage): – M48T212A: 2.
7V ≤ VPFD ≤ 3.
0V MICROPROCESSOR POWER-ON RESET PROGRAMMABLE ALARM OUTPUT ACTIVE in the BATTERY BACKED-UP MODE 4 A0-A3 A E EX W G WDI RSTIN1 RSTIN2 X0 XI M48T212A IRQ/FT RST E1CON E2CON VCCSW VOUT s s s s 44 1 SOH44 (MH) s s s s s Figure 1.
Logic Diagram VCC VCAP DESCRIPTION The M48T212A is...



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